Web3 pre-click safety check

Drop the link in first.
Then decide whether to click.

Submit a suspicious link, repository, package or download. Preflight retrieves and analyses it in an isolated environment, evaluates it against Web3-specific threat indicators — seed-phrase theft, wallet-extension hijacking, address swapping, supply-chain poisoning — and returns an actionable verdict before anything reaches your device.

Free checks per day: 3. No wallet needed. Nothing is executed on your device.

Try:

Engine status

Full roadmap
MVP-0

Static analysis engine

  • Isolated fetch & redirect resolution
  • Phishing blocklists · domain intelligence
  • Repository & package audit
  • Web3 rule engine · AI explanation
MVP-1

Isolated execution sandbox

  • File upload · hash / YARA
  • Linux & Windows containers
  • Wallet-path, clipboard & network monitoring
  • Behavioural scorecard

Why pre-click

Losses happen in the second you click.

Antivirus and EDR shine after a file lands or runs. Web3 teams lose keys on the first click: a fake interview assignment, a poisoned repository, a cracked tool, a second-stage downloader.

The time gap

Local scanners step in after download or execution. Preflight moves the decision to T-1: the server fetches, unpacks and analyses the sample so you never have to.

Lists miss the new

Browser blocklists only know yesterday's domains. New redirects and malicious assignments hosted on legitimate platforms slip through.

Reports in Web3 language

Generic sandboxes return malware family names. Preflight answers the question you actually have: will it steal MetaMask, will it swap my withdrawal address.

Pipeline

Seven steps, one verdict.

Every submission runs the same pipeline. The isolated-execution stage joins with MVP-1; the other six stages produce today's verdict.

  1. 01

    Submit

    Paste a link or upload a file. Optional context ("interview task", "tool from Telegram") adjusts detection weights.

  2. 02

    Safe fetch

    Server follows redirects with a cap, verifies MIME and magic bytes, unpacks nested archives and deduplicates by hash.

  3. 03

    Static pre-check

    Hash intelligence, YARA, script and lockfile audit, extension manifest permissions, entropy and obfuscation features.

  4. 04

    Isolated execution

    Windows / macOS / Linux sandboxes watch wallet paths, clipboard, process tree and DNS/HTTPS.

  5. 05

    Web3 rule engine

    Behaviour is mapped to the scorecard; a lethal hit short-circuits straight to High risk.

  6. 06

    AI summary

    Plain-language conclusion and next steps, generated only from collected evidence — no guessing.

  7. 07

    Deliver

    Shareable report plus copyable IOCs. Enterprise: webhook / Slack. Samples never return to your machine.

  8. Not sure about that link? Don't open it yet.

    Check a link

Scorecard

Six questions a Web3 user actually asks.

The report ranks findings by how you lose money, not by malware family. Analysts still get IOCs and the evidence chain.

Seed / private-key theft

Searches for or exfiltrates mnemonics, keystores, .env, PEM or SSH material.

Browser-wallet risk

Touches wallet extension data or pushes you into approvals, Permit2 or dangerous signatures.

Clipper risk

Monitors the clipboard and rewrites wallet addresses.

Exchange session hijack

Steals logged-in sessions or overlays a fake withdrawal / 2FA screen.

Supply-chain install

Install scripts, lifecycle hooks or dependencies that hide execution.

Persistence & evasion

Stays resident, cleans traces, detects sandboxes or hides behind obfuscation.

OverallSafeSuspiciousHigh risk

Threat model

What Preflight is built to catch.

Initial access and credential theft that start with you opening external content — not post-breach APT forensics.

ThreatTypical lureWeb3 consequence
Fake recruiting / Contagious InterviewCoding-assignment Git repo, setup scriptDev machine compromised → wallet / CI credentials
Supply-chain poisoningMalicious npm / Homebrew / Terraform providerExecutes on install, steals keys
Phishing domains & redirectsLookalike sites, short links, HTML smugglingWallet connect / seed import
ClipperCracked apps, bundled installersCopied address silently replaced
Extension poisoning"Security helper" .crxReads extension wallets, CDP hijack
Documents / installersdmg / pkg / exe, macro documentsRAT / stealer lands
Session & overlayInjection into logged-in exchange pagesFake 2FA, silent withdrawal

Token & quota

Hold for quota. Burn for priority.

The check itself never needs a wallet. Holding PREFLIGHT raises your daily quota; burning it buys extra credits and queue priority once the sandbox is live.

Price

Pending launch

Market cap

–

Burned

0

0% of supply

Total supply

–

ContractPREFLIGHT launches on flap. Until then every connected wallet gets the base tier.
Follow for the launch →

Daily quota by holdings

HoldingChecks / day
No wallet3
Connected wallet5
≥ 1M PREFLIGHT20
≥ 10M PREFLIGHT100

Burn boost

Every 100K PREFLIGHT sent to the dead address adds one extra check credit to your wallet. Credits never expire. Burns are verified from the transaction receipt — no contract, no approval.

Not sure about that link? Don't open it yet.

Paste it into Preflight first. Three free checks a day, no account, no wallet.